Display screen with a graphical user interface



FIG. 1 is a front view of a first embodiment of a display screen with a graphical user interface, showing our new design;

FIG. 2 is a front view of a second embodiment of a display screen with a graphical user interface, showing our new design;

FIG. 3 is a front view of a third embodiment of a display screen with a graphical user interface, showing our new design;

FIG. 4 is a front view of a fourth embodiment of a display screen with a graphical user interface, showing our new design;

FIG. 5 is a front view of a fifth embodiment of a display screen with a graphical user interface, showing our new design; and,

FIG. 6 is a front view of a sixth embodiment of a display screen with a graphical user interface, showing our new design.

The outermost broken lines in the figures showing a display screen form no part of the claimed design. The broken lines represent portions of the graphical user interface and form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 